J. Laserna, D. Romero, P. L. García, S. Palanco, J. M. Vadillo, and .M. Baena, "Open-path laser induced plasma spectrometry for the stand-off detection and fast screening of solid samples,"
in Laser Induced Plasma Spectroscopy and Applications, A. Sawchuk, ed.,
Vol. 81 of OSA Trends in Optics and Photonics Series
(Optical Society of America, 2002), paper WA3.